Your Website Built Itself With AI: Here’s Why It Might Not Be Working

Vibe coding, building a website by describing what you want to an AI tool and letting it write the code, has gone from niche experiment to mainstream shortcut in a remarkably short space of time. Tools like these let anyone spin up a working website in an afternoon, with no traditional development experience needed.

For UK small businesses, agencies and nonprofits working with tight budgets, that is genuinely useful. But there is a catch that often only becomes apparent after the site is live: AI-built websites frequently have underlying issues that make them harder to find on Google, slower than they should be, or trickier to maintain than a site built the traditional way. None of these issues are dealbreakers. They are just things worth knowing about, and most are straightforward to fix with the right hosting setup.

What vibe-coded sites tend to get right

To be fair to the tools, they are very good at what they are designed for:

• Speed to launch: A working site in hours rather than weeks, which is ideal for testing an idea or getting a basic presence online quickly.
• Low upfront cost: No need to brief and pay a developer for a first version.
• Good-looking design: Modern AI tools produce visually polished results that look professional out of the box.

Where AI-built sites often run into trouble

The issues tend to surface once a site needs to actually perform: be found in search, load quickly, and be updated over time.

• Search engine visibility: AI-generated code does not always follow the structural conventions that help search engines understand and index a page properly. Headings, meta information and semantic markup can be inconsistent or missing entirely.
• Page speed and bloat: Code generated quickly is not always efficient code. Extra scripts, unoptimised images and unnecessary elements can slow a site down, which affects both user experience and search rankings.
• Maintainability: If you want to make changes later, either yourself or with a developer, code that was never designed with a consistent structure can be harder and more expensive to work with.
• Hosting compatibility: Some AI website builders export code in formats that need a specific type of hosting environment to run properly, which is worth checking before you commit to a platform.

Why this matters more than it might seem

A website that looks great but is invisible in search results is not delivering much value. If your AI-built site is meant to bring in enquiries, bookings or sales, and it is not appearing when people search for what you offer, the underlying issues are worth addressing, even if the site itself looks finished.

The good news is that these problems are fixable. They usually involve relatively standard SEO and performance work: adding proper headings and meta descriptions, compressing images, removing unused code, and making sure the site has a clear structure that search engines can follow.

Getting the hosting right for an AI-built site

Whatever tool was used to build the site, where it is hosted afterwards makes a real difference to how well these issues can be addressed:

• WordPress compatibility: If you want to move an AI-built site onto WordPress for easier long-term management, hosting that is optimised for WordPress makes this straightforward.
• Performance tools included: A content delivery network and caching help offset some of the page-weight issues common in AI-generated code, without needing to rebuild the site from scratch.
• Staging environments: Useful for testing fixes and improvements before they go live, particularly when working through a list of SEO and performance issues.
• UK-based support that understands the issues: Being able to talk to someone who can help diagnose why a site is not performing as expected, rather than relying on automated tools alone, can save a lot of time.

The bottom line

Vibe coding is a genuinely useful way to get a website live quickly, and it is not going away. But “live” and “working well” are not always the same thing, particularly when it comes to being found in search. If you have a site that was built quickly with AI and want a second opinion on why it might not be performing as expected, Switchweb’s UK-based team can take a look at your hosting setup and flag anything that is holding the site back. We provide UK data centres, daily backups, a CDN and staging environments as standard, giving you a solid base to build on once the initial version is live.